Forum Discussion

Romel_77740's avatar
Romel_77740
Icon for Nimbostratus rankNimbostratus
Nov 15, 2011

irule performance question

Is it better to have 10 different irules applied to the same virtual server that do similar thing or is it better to combine in one script? Or either way doesn't matter? Eg pseudo scripts with 26 iru...
application delivery
dev
devops
iRules
nitass's avatar
nitass
Icon for Employee rankEmployee
Nov 15, 2011
if we code the irule something like this, will a number of irule reduce?

 

 

[root@ve1023:Active] config  b virtual bar list
virtual bar {
   snat automap
   pool foo
   destination 172.28.65.152:http
   ip protocol tcp
   rules myrule
}
[root@ve1023:Active] config  b rule myrule list
rule myrule {
   when CLIENT_ACCEPTED {
        if {[class match -- [IP::client_addr] equals xyz]} {
                log local0. "client is [IP::client_addr]:[TCP::client_port], action is [class match -value [IP::client_addr] equals xyz]"
        }
}
}
[root@ve1023:Active] config  b class xyz list
class xyz {
   {
      network 172.28.19.0/24 { "action2" }
      host 192.168.204.7 { "action1" }
   }
}

[root@ve1023:Active] config  tail -f /var/log/ltm
Nov 15 08:48:30 local/tmm info tmm[4766]: Rule myrule : client is 192.168.204.7:54379, action is action1
Nov 15 08:48:38 local/tmm info tmm[4766]: Rule myrule : client is 172.28.19.253:59039, action is action2